package cn.edu.scau.cmi.dengyu.composite.consistent;

public class USA extends WorldOrganization{
	String greeting = "Hi!";
	String errMes = "Can not add";
	String errMes2 = "Can not remove";

	public String add(WorldOrganization country) {
		return errMes;
	}
	
	public String remove(WorldOrganization country) {
		return errMes2;
	}
	
	public String say() {
		return greeting;
	}
}
